Post Image

Coated to last

For best performance, fiberglass fenestration materials require coating with items like paint or stain and protective coatings to help provide protection from the elements.

Fiberglass is often finished in the factory, where coatings are applied to minimize waste and provide a long-term durable finish. Fiberglass provides the flexibility to choose factory-finished fenestration options like powder-coated paint, minimizing volatile organic compounds (VOCs) often associated with job-site solvent-based finishing options. Or, some fiberglass products can be finished in the field, allowing you to coordinate finishes with other items in the home or business.

Coated fiberglass products, by their very nature, offer labor-saving, environmentally-friendly solutions. The surfaces of coated fiberglass products are resistant to blistering, peeling or chipping. That means you may never need to refinish your fiberglass windows, doors or skylights.

AAMA offers three different performance levels of coating options for fiberglass. You can read descriptions of these documents and purchase them in AAMA’s Publication Store:

  • AAMA 623, Voluntary Specification, Performance Requirements and Test Procedures for Organic Coatings on Fiber Reinforced Thermoset Profiles
  • AAMA 624, Voluntary Specification, Performance Requirements and Test Procedures for High Performance Organic Coatings on Fiber Reinforced Thermoset Profiles
  • AAMA 625, Voluntary Specification, Performance Requirements and Test Procedures for Superior Performance Organic Coatings on Fiber Reinforced Thermoset Profiles


Whatever type of coating you choose, fiberglass fenestration materials are known for their ability to weather extreme temperatures.

For more information about fiberglass coatings, read AAMA’s article from Door and Window Manufacturer, Requirements for Fiberglass Coatings Evolve